Abstract

Anti-lock braking systems (ABS) have been used for improving the vehicle safety in the past few decades. A performance and durability test system for ABS modules is necessary for guiding the product improvement. In this work, a novel versatile test system with a complete sensorial system is designed and realized for fulfilling the durability and performance test of ABS. Unlike traditional approach using wheels, this system relies on electrical signal to trigger the action of ABS. This results in a simple, compact, and versatile design. The test mainly concerns the performance of the hydraulic control unit (HCU) of ABS by examining the hydraulic responses after receiving the command. In addition, two commercial Bosch ABS modules are used on the system as the test samples for the purpose of validation and demonstration. In parallel, the results of the HCU performance test are also compared with that obtained from a commercial test platform based on the same ABS unit. The test results are similar and this fact demonstrates the applicability of the designed system. In comparison with the corresponding commercial system, the designed system is relatively low cost, size compact, and more versatile in testing manner. In the future, more sensors and functions would be added to enhancing the functionality and reliability of the system and becomes compatible with a traditional electronic control unit (ECU) performance test.

Highlights

  • IntroductionFor characterizing the braking performance of Anti-lock braking systems (ABS)-mounted car

  • Anti-lock braking systems (ABS) have been widely mounted in many types of vehicles in the past few decades(1) and many test systems had been designed in other works(1-4)for characterizing the braking performance of ABS-mounted car

  • The high pressure brake fluid provided by a high pressure source would be modulated by the hydraulic control unit (HCU) and the dynamic response of fluid pressure are obtained by the associated pressure sensors

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Summary

Introduction

For characterizing the braking performance of ABS-mounted car Those systems are designed for addressing braking dynamics, not for testing the ABS units. J.A. Cabrera et al built up a versatile tire testing machine acquiring the data of braking tires with simulated ABS system (5) as the focus of their work. Cabrera et al built up a versatile tire testing machine acquiring the data of braking tires with simulated ABS system (5) as the focus of their work It is mainly suitable for studying braking performance but not for the performance and durability test because this paper focuses only on the tire speed, slip ratio, slip angle, etc. A test system focused on the ABS module itself only is important and cannot be replaced by others in product development

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